@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<http://www.irandoc.acir/onto/irandoc/INSP0007521>
  skos:prefLabel "معادله انتگرال"@fa, "integral equation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/INSP0007520> .

<http://www.irandoc.acir/onto/irandoc/INSP0007518>
  skos:prefLabel "معادله انتگرو دیفرانسیل"@fa, "integro-differential equation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0007520> .

<http://www.irandoc.acir/onto/irandoc/INSP0007520>
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0007518> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/INSP0007521> ;
  skos:prefLabel "Volterra equation"@en, "معادله ولترا"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .